1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nezavi [6.7K]
1 year ago
10

If f(x) = -2x + 4, then f^-1(x) =

Mathematics
1 answer:
Nadusha1986 [10]1 year ago
7 0

Answer:

f^{-1}(x) = -\frac{x}{2} +2

Step-by-step explanation:

Consider the real number y such that  f ⁻¹(x) = y

f^{-1}\left( x\right)  =y\Longleftrightarrow f\left( y\right)  =x

We need to find y in order to determine the expression of  f ⁻¹(x)

f(y) = x ⇔ -2y + 4 = x

⇔ 4 - x = 2y

⇔ y = (4 - x)/2

\Longleftrightarrow y=-\frac{x}{2} +2

You might be interested in
Which equation is in slope-intercept form and has a y-intercept of -2?
NISA [10]

Answer:

the

Step-by-step explanation:

3 0
3 years ago
Solve the inequality.<br><br> x − 10 &lt; 6 − 5x thanks. i dont feel like doing this
Ivenika [448]

move all the combine like terms together

-5x move it to the left side of the sign

-10 move it to the right side of the sign

x+5x<6+10

do the math

6x<16

divide 6 by both sides

x<2.67

8 0
3 years ago
Read 2 more answers
A certain stock exchange designates each stock with a one-, two-, or three-letter code, where each letter is selected from the 2
Sophie [7]

Answer: Option 'e' is correct.

Step-by-step explanation:

Since we have given that

Number of letters of the alphabet = 26

Number of letters in code :

One letter code, or two letter code, or three - letter code.

Since repetition of letters are allowed, then

if it is one letter code, the number of arrangement would be 26.

If it is two letter code, the number of arrangements would be

26\times 26\\\\=26^2\\\\=676

If it is three letter code, the number of arrangements would be

26\times 26\times 26\\\\=26^3\\\\=17576

So, Number of different stocks to uniquely designate with these codes would be

26+676+17576\\\\=18278

Hence, Option 'e' is correct.

4 0
3 years ago
Read 2 more answers
What is a synonym for legend? A legend such as one on a map...
KonstantinChe [14]
The best synonym for that kind of legend is key. Hope this helps.
8 0
3 years ago
What is 1+1? It's so hard XD
Paha777 [63]

Answer:

2

Step-by-step explanation:

one+one=two

8 0
3 years ago
Read 2 more answers
Other questions:
  • Can somebody help teach me how to solve quadratic equations? I have no idea what to plug in. Here are some examples of what I ne
    5·1 answer
  • Helpppp explainn how to solve it
    14·1 answer
  • Can you help me on problem number 23?
    11·2 answers
  • In 2010, 8476 earthquakes
    8·2 answers
  • Find the mean and median of the set of numbers: <br> 5,9,3,5,3,5?
    14·1 answer
  • What is the solution to the following equation? X +(-13) = -5. A. X= 18 B. X = 8 C. x -18 D. X = -8​
    9·1 answer
  • What percent of 0.2 gram of 32 mg
    7·1 answer
  • A circle is placed in a square with a side length of 12ft, as shown below. Find the area of the shaded region.
    5·1 answer
  • How do I do this??????? 2/3x-(1/2x+1)<br>btw need it simplified
    10·1 answer
  • Im realy in need of your help please help me solve this math problem.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!